Tractor reference
Kubota BX23S
Specifications, maintenance, parts and compatibility reference.
Reference set: United States · BX23S 4WD HST tractor-loader-backhoe platform; open-station ROPS with optional dealer-installed cab · Current Current 2026 Kubota USA lineup. Current full-line values take precedence where older BX brochures differ, including the BX2680 23.3 gross HP / 19.2 PTO HP revision.
Engine
Engine manufacturerKubota
Engine familyD902
Engine typeLiquid-cooled, 3-cylinder diesel
Cylinders3
Displacement54.8 cu in
Displacement898 cm3
Gross engine power21.6 hp
Rated engine speed3200 rpm
Transmission
Standard transmissionHST, high-low gear shift (2 forward / 2 reverse)
BrakesWet disc
Maximum forward speed8.4 mph
Driveline4WD
Maximum reverse speed6.5 mph
SteeringHydrostatic power steering
PTO
PTO power17.7 hp
PTO actuationLive independent PTO with hydraulic clutch
PTO configurationStandard rear PTO, 540 rpm
Mid PTOStandard mid PTO, 2500 rpm
Hydraulics
Hydraulic pump rated output6.2 gpm
3-point hitchOptional SAE Category I
3-point hitch lift capacity at 24 in. behind lift point680 lb
Dimensions & Weight
Overall width45.1 in
Overall height86.2 in
Overall length99 in
Standard 4WD wheelbase55.1 in
Tractor weight1598 lb
Capacities
Fuel tank capacity6.6 US gal (25 L)
Compatible parts & kits
Parts shown here are limited to the selected reference context plus generic machine-level fitment. Configuration-specific fitment, evidence confidence and the direct fitment source are shown under each part when available.
K1211-82320Engine Air Filter ElementApplies to: Current US BX80 HST service-filter referenceEvidence: High-confidence source-backed fitment · Kubota BX23S-1 parts catalog - current service filter references →Engine Air Filters →
HH1J0-32430Engine Oil Filter CartridgeApplies to: Current US BX80 HST service-filter referenceEvidence: High-confidence source-backed fitment · Kubota BX23S-1 parts catalog - current service filter references →Engine Oil Filters →
12581-43012In-Line Fuel FilterApplies to: Current US BX80 HST service-filter referenceEvidence: High-confidence source-backed fitment · Kubota BX23S-1 parts catalog - current service filter references →Fuel Filters →
HHK20-36994Transmission Oil Filter CartridgeApplies to: Current US BX80 HST service-filter referenceEvidence: High-confidence source-backed fitment · Kubota BX23S-1 parts catalog - current service filter references →Transmission Filters →
Documented attachment fitment
Attachment fitment is stored separately from the specification/parts version selector. Multiple cited records for the same attachment are grouped below rather than shown as duplicate attachments. A listed attachment may still require a specific axle, driveline, transmission or tractor configuration.
BackhoeKubota BT603Fitment note: Kubota BX Series brochure identifies BT603 as the matching backhoe for BX23S and states that the loader and backhoe come standard on BX23S.Backhoe details: Kubota Swift-Connect backhoe for BX23S; optional mechanical thumb; loader and backhoe are standard equipment on BX23SFitment source: Kubota USA BX Series brochure - official loader and backhoe specifications →
72.5 in digging depth (2 ft flat bottom); 8 ft 7 in reach from swing pivot; 140° swing arcWorking height: 67.7 in transport height; 100 in operating height fully raised
Easy Over MowerKubota RCK54D-26BX-1Fitment note: Kubota BX Series brochure lists RCK54D-26BX-1 Easy-Over mower for BX2380, BX2680 and BX23S. Kubota notes that this mower is not compatible with bar tires.Easy Over Mower details: 54 in (1372 mm) cutting width; 1.0-4.0 in cutting height; 3 blades; drive-over suspended linkage; 1/4 in dial height adjustment; approx. 269 lb on BX2380/BX2680 and 258 lb on BX23S; 6.0 in transport ground clearance. Not compatible with bar tires.Fitment source: Kubota USA BX Series brochure - mid-mount and Easy-Over mower specifications →
Easy Over MowerKubota RCK60D-26BX-1Fitment note: Kubota BX Series brochure lists RCK60D-26BX-1 Easy-Over mower for BX2380, BX2680 and BX23S. Kubota notes that this mower is not compatible with bar tires.Easy Over Mower details: 60 in (1524 mm) cutting width; 1.0-4.0 in cutting height; 3 blades; drive-over suspended linkage; 1/4 in dial height adjustment; approx. 295 lb on BX2380/BX2680 and 284 lb on BX23S; 6.0 in transport ground clearance. Not compatible with bar tires.Fitment source: Kubota USA BX Series brochure - mid-mount and Easy-Over mower specifications →
Front loaderKubota LA340Fitment note: Kubota BX Series brochure lists LA340 pin-on loader as a matching BX23S loader.Front loader details: Kubota Swift-Tach pin-on front loader; standard loader configuration for BX23SFitment source: Kubota USA BX Series brochure - official loader and backhoe specifications →
739 lb at pivot pin/max height; 820 lb at pivot pin @ 1.5 mLift height: 71.0 in maximum lift height at pivot pin
Front loaderKubota LA340SFitment note: Kubota BX Series brochure lists LA340S quick-attach loader as a matching BX23S loader.Front loader details: Kubota Swift-Tach quick-attach front loader with two-lever quick coupler for BX23SFitment source: Kubota USA BX Series brochure - official loader and backhoe specifications →
613 lb at pivot pin/max height; 699 lb at pivot pin @ 1.5 mLift height: 71.0 in maximum lift height at pivot pin
Mid Mount MowerKubota RCK54-23BXFitment note: Kubota BX Series brochure lists RCK54-23BX as compatible with BX1880, BX2380, BX2680 and BX23S.Mid Mount Mower details: 54 in (1375 mm) cutting width; 1.0-4.0 in cutting height; 3 blades; Quick-Joint parallel suspended linkage; 1/4 in dial height adjustment; approx. 210 lb; 6.0 in transport ground clearance.Fitment source: Kubota USA BX Series brochure - mid-mount and Easy-Over mower specifications →
Mid Mount MowerKubota RCK60B-23BXFitment note: Kubota BX Series brochure lists RCK60B-23BX as compatible with BX2380, BX2680 and BX23S.Mid Mount Mower details: 60 in (1524 mm) cutting width; 1.0-4.0 in cutting height; 3 blades; Quick-Joint self-balance suspended linkage; 1/4 in dial height adjustment; approx. 250 lb; 6.0 in transport ground clearance.Fitment source: Kubota USA BX Series brochure - mid-mount and Easy-Over mower specifications →
Sources
Kubota · official sourceKubota USA BX Series brochure - official loader and backhoe specifications
Kubota · official sourceKubota USA 2026 Full Product Line - current BX Series specifications and lineup
Messicks · supplier referenceKubota BX23S-1 parts catalog - current service filter references
Kubota · official sourceKubota USA BX Series brochure - mid-mount and Easy-Over mower specifications